Worked on the microsoft/markitdown repository to address a reliability issue in path parsing by correcting a syntax error in the Core Path List. Focused on Python development, the work involved identifying and fixing a missing comma that had caused runtime errors in well-known path definitions. By restoring proper syntax, the update ensured that path configurations functioned correctly across different environments and modules. The solution was carefully documented with clear commit messages and linked to the relevant issue for traceability. No new features were introduced during this period, with efforts concentrated on maintaining code stability and improving downstream reliability.